Genetic and Molecular Dissection of Flowering Time Control in Rice

Abstract

Flowering time is one of the most important agronomic traits in rice (Oryza sativa L.) and is primarily controlled by quantitative trait loci (QTLs) that are associated with a photoperiodic response, particularly in short-day (SD) plants such as rice. Since the early twentieth century, rice breeders and researchers have been interested in clarifying the genetic control of flowering time because its modification is important for regional adaptation. The sequencing of the rice genome has facilitated genome-wide mapping of loci and gene cloning; thus, more progress has been made in elucidating the genetic control pathways of flowering. In this chapter, we provide an overview of the studies investigating rice flowering.